Effect of dietary condensed tannins inclusion from Acacia mearnsii extract on the growth performance, carcass traits and meat quality of lambs

Costa, Emellinne Ingrid de Sousa; Ribeiro, Cláudio Vaz Di Mambro; Silva, Thadeu Mariniello; Batista, Ana Sancha Malveira; Vieira, J.F.; Barbosa, Analívia Martins; Júnior, Jarbas Miguel da Silva; Bezerra, Leílson Rocha; Pereira, Elzânia Sales; Oliveira, Ronaldo Lopes

doi:10.1016/j.livsci.2021.104717

Cited by 10 publications

(4 citation statements)

References 41 publications

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“…The thrombogenic index, the atherogenic index, PUFA / SFA, the ratio of low cholesterolemic fatty acids / high cholesterolemic fatty acids (h / H), and other indexes, which were calculated based on the fatty acid composition and content obtained from the LTL muscle of lambs, are biomarkers of the nutritional value and cardiovascular health risk potential of the meat. However, it is clear from the MUFA, PUFA, and other indexes that the meat of these five breeds is of similar quality to that of other breeds (Costa et al, 2021;Gonzales-Barron et al, 2021). Additionally, some PUFAs and SFAs were not found in some animals within the breed in terms of the fatty acid profile, which infers that such animals could possibly be selectively bred in order to ensure genetic improvements in terms of the fatty acid profile.…”

Section: Resultsmentioning

confidence: 92%

Fatty acid profile and sensory properties of lamb meat from males of five indigenous breeds

Mercan¹,

Çam²,

Olfaz³

et al. 2022

Arch. Anim. Breed.

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Abstract. The objective of this study was to determine meat quality characteristics, fatty acid profiles, and sensory characteristics of 50 single-birth male lambs from five breeds: Artlı (n=10), Çepni (n=10), Hemşin (n=10), Karayaka (n=10), and Of (n=10). At the beginning of the experiment, the average age and weight of the lambs were 120 ± 5 d and 30.7 ± 0.68 kg respectively. After 60 d of intensive fattening, the average live weight before slaughter was 40.96 kg ± 0.76 kg. All evaluations were performed on samples from the longissimus thoracis et lumborum (LTL) muscle. There was no difference between breeds in terms of the pH values of the hot carcasses, whereas the cold carcass pH values were higher (P<0.001) in Hemşin animals than in the other breeds. Meat chemical properties (such as organic matter; dry matter; and fat, measured as the ether extract), physical properties (such as cooking loss; drip loss; and water-holding capacity, WHC), and instrumental values (such as colour, L* and b* values, chewiness, hardness, and resilience) were significantly affected by breed differences. Additionally, the differences between breeds were found to be significant in terms of the fatty acid composition and the evaluation of organoleptic properties, such as sensory characteristics, flavour, and juiciness of cooked (boiled or roasted) meat. The results show that lamb meat's physical, chemical, and sensory properties vary by breed. The differences found in the composition and presence of meat fatty acids between and within breeds can be used as a source of variation for future genetic improvement strategies.

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Section: Resultsmentioning

confidence: 92%

Fatty acid profile and sensory properties of lamb meat from males of five indigenous breeds

Mercan¹,

Çam²,

Olfaz³

et al. 2022

Arch. Anim. Breed.

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“…The optimal inclusion levels of tannins were between 26.2 and 52.4 g tannin/kg DM, corresponding to an approximately 20 to 40% inclusion of Mimosa tenuiflora hay in the total diet of the lambs. This can be explained by the binding action of tannins with high-biological-value proteins, protecting them from proteolytic bacteria in the rumen and facilitating their release and absorption in the small intestine [39]. Additionally, tannins also play a role in controlling protozoa populations and contribute to the microbial balance in the rumen, leading to improved energy and protein utilization [20].…”

Section: Discussionmentioning

confidence: 99%

Effects of Increasing Levels of Total Tannins on Intake, Digestibility, and Balance of Nitrogen, Water, and Energy in Hair Lambs

Aguiar

Bezerra

Cordão³

et al. 2023

Animals

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This study aims to evaluate the effects of increasing tannin levels from Mimosa tenuiflora hay on the intake, digestibility, and balance of nitrogen (N), water, and energy in hair lambs. Thirty-two Santa Ines lambs, at an average age of 150 days and body weight of 26.75 ± 2.29 kg, were randomly assigned to four treatments in a completely randomized design. The treatments consisted of four diets: a control diet, tannin-free, and three diets with increasing levels of total tannin, 26.2, 52.4, and 78.6 g tannin/kg dry matter (DM). Including the total tannins in the lambs’ diet led to a quadratic increase in the intake of nutrients, N-retention (g/day), water intake, water absorption and retention, energy intake, and energy excretion in feces and gases. However, the digestibility of crude protein, neutral and acid detergent fibers, and total carbohydrates decreased. It was observed that there is a correlation between the variable nutrient digestibility and N-ingested and the N-absorbed, N-urinary, and N-retained. However, the N-excreted in feces did not correlate with any of the variables studied. It is recommended to include 33 g/kg DM of total natural tannins from Mimosa tenuiflora hay in the diet of hair lambs, as it improves intake, energy balance, dietary N, and body water composition while reducing the excretion of N-urinary and gas emissions to the environment.

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“…For example, Cenci et al (2007), observed better growth performance and lower nematode loads in sheep fed A. mearnsii extracts containing up to 3.2 gCT kg − 1 DM. On the contrary, low average daily gain (ADG) and carcass weights were reported for lambs fed A. mearnsii extracts containing ≥ 60 g CT kg − 1 DM (Costa et al, 2021). Recently, feeding A. mearnsii leaf-meal up to 100 gkg − 1 DM replacing Triticum aestivum (wheat) bran in lamb nisher diets had no effect on growth performance and carcass weights (Uushona et al, 2023b).…”

Section: Introductionmentioning

confidence: 99%

Supplementation of Acacia dealbata versus Acacia mearnsii leaf-meal has potential to maintain growth performance of lambs grazing low-quality communal rangelands in South Africa

Mushunje,

Marandure,

Chikwanha

et al. 2024

Preprint

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Supplementing livestock grazing communal rangelands with leaf-meals from Acacia trees, which are currently considered as problematic invasive alien plants globally, may be a sustainable way of exploiting their desirable nutritional and anthelmintic properties. The current study evaluated worm burdens and growth performance of lambs grazing low-quality communal rangelands supplemented with leaf-meals prepared from the invasive alien plant species; Acacia mearnsii or A. dealbata. Forty, three-month-old ewe lambs weighing an average of 18.9 ± 0.60 kg were randomly allocated to four supplementary diets: (1) rangeland hay only (control), (2) commercial protein supplement plus rangeland hay, (3) A. mearnsii leaf-meal plus rangeland hay and (4) A. dealbata leaf-meal plus rangeland hay. All the supplementary diets were formulated to meet the lambs’ minimum maintenance requirements for protein. All the lambs were grazed on communal rangelands daily from 0800 to 1400 after which they were penned to allow them access to their respective supplementary diets until 08:00 the following morning. The respective supplementary diets were offered at the rate of 400 g ewe− 1 day− 1 for 60 days. Lambs fed the commercial protein supplement had the highest dry matter intake followed by those fed the Acacia leaf-meals and the control diet, respectively (P ≤ 0.05). Relative to the other supplementary diets, lambs fed the commercial protein supplement and A. dealbata leaf-meal had higher (P ≤ 0.05) final body weight and average daily gains. Dietary supplementation did not affect lamb faecal worm egg counts over the study period (P > 0.05). There was no association between supplementary diets and lamb FAMACHA© scores (P > 0.05). It was concluded that the Acacia dealbata relative to Acacia mearnsii has potential to maintain growth performance of lambs grazing communal rangelands in the dry season.

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Effect of dietary condensed tannins inclusion from Acacia mearnsii extract on the growth performance, carcass traits and meat quality of lambs

Cited by 10 publications

References 41 publications

Fatty acid profile and sensory properties of lamb meat from males of five indigenous breeds

Fatty acid profile and sensory properties of lamb meat from males of five indigenous breeds

Effects of Increasing Levels of Total Tannins on Intake, Digestibility, and Balance of Nitrogen, Water, and Energy in Hair Lambs

Supplementation of Acacia dealbata versus Acacia mearnsii leaf-meal has potential to maintain growth performance of lambs grazing low-quality communal rangelands in South Africa

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